static int
mt76x0_sta_add(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
struct ieee80211_sta *sta)
{
struct mt76x0_dev *dev = hw->priv;
struct mt76_sta *msta = (struct mt76_sta *) sta->drv_priv;
struct mt76_vif *mvif = (struct mt76_vif *) vif->drv_priv;
int ret = 0;
int idx = 0;
mutex_lock(&dev->mutex);
idx = mt76_wcid_alloc(dev->wcid_mask, ARRAY_SIZE(dev->wcid));
if (idx < 0) {
ret = -ENOSPC;
goto out;
}
msta->wcid.idx = idx;
msta->wcid.hw_key_idx = -1;
mt76x0_mac_wcid_setup(dev, idx, mvif->idx, sta->addr);
mt76_clear(dev, MT_WCID_DROP(idx), MT_WCID_DROP_MASK(idx));
rcu_assign_pointer(dev->wcid[idx], &msta->wcid);
mt76x0_mac_set_ampdu_factor(dev);
out:
mutex_unlock(&dev->mutex);
return ret;
}
static int
mt76x0_sta_remove(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
struct ieee80211_sta *sta)
{
struct mt76x0_dev *dev = hw->priv;
struct mt76_sta *msta = (struct mt76_sta *) sta->drv_priv;
int idx = msta->wcid.idx;
mutex_lock(&dev->mutex);
rcu_assign_pointer(dev->wcid[idx], NULL);
mt76_set(dev, MT_WCID_DROP(idx), MT_WCID_DROP_MASK(idx));
dev->wcid_mask[idx / BITS_PER_LONG] &= ~BIT(idx % BITS_PER_LONG);
mt76x0_mac_wcid_setup(dev, idx, 0, NULL);
mt76x0_mac_set_ampdu_factor(dev);
mutex_unlock(&dev->mutex);
return 0;
}
static int
mt76_sta_remove(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
struct ieee80211_sta *sta)
{
struct mt76_dev *dev = hw->priv;
struct mt76_sta *msta = (struct mt76_sta *) sta->drv_priv;
int idx = msta->wcid.idx;
int i;
mutex_lock(&dev->mutex);
rcu_assign_pointer(dev->wcid[idx], NULL);
for (i = 0; i < ARRAY_SIZE(sta->txq); i++)
mt76_txq_remove(dev, sta->txq[i]);
mt76_set(dev, MT_WCID_DROP(idx), MT_WCID_DROP_MASK(idx));
dev->wcid_mask[idx / BITS_PER_LONG] &= ~BIT(idx % BITS_PER_LONG);
mt76_mac_wcid_setup(dev, idx, 0, NULL);
mutex_unlock(&dev->mutex);
return 0;
}